If you have an engine with less than @550hp, you may consider using the RARE exhaust manifolds. It will look factory, they fit perfect, don't leak as easy, and you can keep your locking rod assembly, for one.
http://www.ramairrestoration.com/rm-...oversized.html
Read the instructions with the Doug's headers if that's the route you choose to go. I think they comment on the lock rod and other mods that might be required.
I've seen where the Doug's also make contact with the passenger side lower control arm mount, can search it here, it kind of depends, happens to some, not others.
If the car is lowered, I wouldn't recommend the Hookers or the Hedmans, they both hang low on the passenger side. And if they cost more than Doug's, it's pointless to buy them, cost would be the only reason to buy anything other than Doug's.
Doug's fit the best, but they still aren't perfect.
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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
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1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
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